55f8d08a1e6a4aa04c45edbcfaedaca8e1843a7891bb9152d53ef8196c9ad35a

Analysis

max time kernel
91s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 04:25

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General

Target

55f8d08a1e6a4aa04c45edbcfaedaca8e1843a7891bb9152d53ef8196c9ad35a.dll
Size

236KB
MD5

fd5cdb5f519e89072979e2330bfc29d9
SHA1

aca89e92024d9a035091cbd0c34a66b51ccf0ea8
SHA256

55f8d08a1e6a4aa04c45edbcfaedaca8e1843a7891bb9152d53ef8196c9ad35a
SHA512

a2964d88c5c6e88d7b4e2182a148bcd43cec7d3365bff50717cf80532105adcd9407c7843423fac7eaab395ff3cb0406d8f77bd4b94d1746172256697bb1e7ca
SSDEEP

3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkIm:+Qj9U3jwO3rt5F

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\qvw = "{85843c13-0d0c-5251-1e1d-0d0cb49b841f}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4568	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dij.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\dij.dll	rundll32.exe
File created	C:\Windows\SysWOW64\lqr.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\lqr.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85843c13-0d0c-5251-1e1d-0d0cb49b841f}\InprocServer32\ = "C:\\Windows\\SysWow64\\lqr.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85843c13-0d0c-5251-1e1d-0d0cb49b841f}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85843c13-0d0c-5251-1e1d-0d0cb49b841f}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85843c13-0d0c-5251-1e1d-0d0cb49b841f}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{85843c13-0d0c-5251-1e1d-0d0cb49b841f}\InprocServer32	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4568	rundll32.exe
4568	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4568	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4568	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 4568	4816	rundll32.exe	81
PID 4816 wrote to memory of 4568	4816	rundll32.exe	81
PID 4816 wrote to memory of 4568	4816	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\55f8d08a1e6a4aa04c45edbcfaedaca8e1843a7891bb9152d53ef8196c9ad35a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\55f8d08a1e6a4aa04c45edbcfaedaca8e1843a7891bb9152d53ef8196c9ad35a.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\dij.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/4568-133-0x0000000000730000-0x0000000000774000-memory.dmp

Filesize
272KB

Download
memory/4568-135-0x0000000000730000-0x0000000000774000-memory.dmp

Filesize
272KB

Download
memory/4568-136-0x0000000000730000-0x0000000000774000-memory.dmp

Filesize
272KB

Download